Chemical bonds between surface molecules and fluid molecules can bind molecules to surfaces chemically {chemisorption}|. Molecule stays at surface from 1 to 1000 seconds and then has desorption. Chemisorption has activation energy. At low pressure and low absorption, chemisorption fraction depends on pressure. At high pressure or for strong electrical forces, chemisorption fraction depends on pressure inverse.
Chemisorbed molecules stay at surface from 1 second to 1000 seconds and then leave {desorption, surface}|, heating surface. Surface chemical bonds break. Desorption has activation energy.
5-Physics-Dynamics-Fluid-Adhesion
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Date Modified: 2022.0225